If you want to feel happy - and wonderful about yourself - science has the answer. Do something for someone else.

Researchers Lalin Anik, Lara Aknin, Michael Norton and Elizabeth Dunn have shown that people who commit random acts of kindness are significantly happier than those who don’t, and spending money on others makes you happier than spending money on yourself. They also have discovered happier people help others more, and they give more. A positive mood makes you nicer! This makes a circle: giving makes you happy, and when you’re happy you give more, which makes you happier, which makes you give more.

I bring up this selfess circle of happiness now because Tuesday is #GivingTuesday, a national day of giving. Black Friday in stores and Cyber Monday for online shopping are behind us, and we’ve arrived at the day to do something for others.

Here are two ways to celebrate.

1. Go into work today feeling like a star of the movement. If you read this blog, you are making the world a better place in some way, and you live #GivingTuesday every day of the year. You are wonderful, and so you should take a moment to feel joy at the difference you make. I, for one, am so happy for what you do.